Healthdirect Australia Help Center

    Troubleshooting: Issues identified in a pre-call test

    Who needs this information: All callers experiencing issues during a test call

    When Video Call users run a pre-call test, the system runs a short series of tests to check that your device is able to conduct a successful video consultation.

    Should any of the pre-call test steps fail, click on the icons below for help. Please note that not all test fails result in not being able to participate in a video call.

    Example of a test with failed results

     Web Browser 

    Ensure that you are using one of the following web browsers:

    • Google Chrome Version 80+ (Windows, Android, MacOS)

    • Apple Safari Version 12+ (MacOS, iOS)

    • Firefox Version 75+ (Windows, Android)

    • Microsoft Edge Version 80+ (Windows MacOS), Version 44+ (Android)

    What browser am I using now?

    How do I know if I have the latest browser version?

    Check what version of browser you are using: 

    This website displays the name and version of the web browser you are currently using.

     Camera test 

    Ensure your camera is working if it is in-built in your PC/Mac/mobile device

    Using a Windows PC

    On a Windows PC go to Search in your task bar and type ‘Camera’. The camera app will open and you will see your camera image – you can switch cameras if you have more than one available. Make sure you can see yourself.

    Using a Mac

    On a Mac open the Photo Booth application and make sure you can see yourself.

    • If you are using an external camera, for example a USB camera, ensure it is firmly plugged in and detected by your computer.  

            Tip: Unplug the camera and plug it in again. This forces your computer to try and detect it.

    • Ensure there is no other software such as Skype or a video conferencing client running on your device and using your camera. It is best to completely close all these other applications when you are using Video Call.

    Microphone test 

    Go to your Sound settings and check you have the correct input (microphone) selected:

    Using a Windows PC

    Go to Search in your task bar and type in Sound. Navigate to the sound input settings.

    Using a Mac

    Go to System Preferences, click on Sound and check the device selected under Input.

    • You can also select your microphone from your Chrome browser settings:

    Using a Windows PC

    1. In a Google Chrome browser, open a new tab.

    2. In the address bar, enter chrome://settings/content/microphone.

    Google Chrome's Microphone settings page opens.

    3. Select the microphone you want as your default from the drop-down list.

    Using a Mac

    1. In a Google Chrome browser, Click on settings and type in ‘Site settings’


    Open site settings and click on Microphone


    1. Select the microphone you want to use from the drop-down list.


    • If you are using an external USB microphone, ensure it is firmly plugged in. You can also unplug it and plug it again as this forces your computer to re-detect it.
    • Ensure your microphone volume is set adequately, especially if you have volume control on your external headset.
    • Ensure, there is no other software such as Skype or a video conferencing client open on your device and using your microphone. It is best to completely close all other applications that access your microphone and camera when you are using Video Call.
    • If you have a USB echo-cancelling combined microphone/speaker unit, make sure it is selected for use as both the microphone and speaker.

    Connection test 

    Video Call is designed to work in as many different corporate or institutional networks as possible, with little to no special network configuration required.

    Each Video Call Management Console user's device must have access to the Internet via secure port 443. This is the same access requirement as for other secure internet websites.

    For Video Call to be optimised, network access must be allowed to via port 3478 using UDP protocol. TCP protocol will often work but may cause issues so please have your IT department or Webmaster allow UDP using the information in the table below.
    Please Note: If either UDP or TCP are ticked you will have access to video call (you don't need both).

    A good broadband connection is required - minimum speed is 350Kbps upstream and downstream for Video Call. 

    Test your speed here:

    If using your mobile phone or tablet, a good 3G/4G mobile signal should be adequate for Video Call.

    If you are having connection issues or errors in the precall test there are a few things you can check:

    Behind a proxy or firewall

    Video Call uses a technology known as WebSockets for our call orchestration. While a standard, and highly prevalent web technology, some network architectures include proxies and/or firewalls that can block the necessary connection upgrades required for WebSockets to work, and result in an inability to connect to our Video Call infrastructure.
    You can test to see if this may be a potential issue for you using

    You may be attempting to make a Video Call from a large health/corporate organisation or hospital network.

    Check with your IT department that the network rules are maintained as below:

    • Protocol: UDP
    • Destination Port: open 3478
    • Allow STUN/TURN Server URL:

    An alternative solution is to use another network - such as a 4G phone/mobile broadband connection to connect to your call.

    Interference from Antivirus Software

    Similar to the above section, some Antivirus software can interfere with the establishment of a WebSockets connection.

    If you are experiencing interference from your Antivirus Software, you may be able to add an exception for videocall sites (https://*. for your Antivirus to allow WebSockets to work.

    If you are within a corporate network, this may require the assistance of your network administrator.

    Interference from a VPN

    If you have a company provided laptop or desktop computer that has VPN capability, it may cause issues connecting with healthdirect Video Call. You may get a message saying 'this website is unavailable'.
    First try to complete a precall test with your VPN disconnected. If you are unable to connect to the precall test page, please ensure your IT Team whitelists the following addresses on the Proxy Server:

    For many VPN connections, allowing NAT egress to UDP port 3478 on the relay server ( will also be required.
    Reflexive candidate issues
    Reflexive candidates are obtained when the computer is behind NAT (Network address translation) and obtains a public internet facing IP address by sending requests to the STUN/TURN server.
    In this example the user is not able to connect using reflexive candidate but can connect using relay candidate and both TCP and UDP are enabled so they would be able to participate in a Video Call.
    Please note: As long as at least one connectivity method is available you should be able to complete a Video call. If all three connectivity options are blocked please contact your local IT support. 

    If the troubleshooting steps above do not solve your issues please contact your local Telehealth support and they will assist and escalate further if required. 

    Can’t find what you’re looking for?

    Email support

    or speak to the Video Call team on 1800 580 771

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